Re: [docbook-apps] Metadata in FO?

["W. Martin Borgert" <debacle@debian.org>]

On Tue, Feb 05, 2008 at 03:40:33PM +0000, Chris Ridd wrote:
> On 5 Feb 2008, at 13:33, W. Martin Borgert wrote:
>> is there a way to get DocBook XML metadata into the PDF
>> metadata? Information such as Title, Author, Keywords? Or is it
>> all lost in the FO stage? TIA!
>
> It depends on the FO processor - they usually support PIs that let you  
> include PDF metadata; the docbook xsl stylesheets already know to write 
> the correct PIs for FOP and XEP. (Maybe other processors, but I've tried 
> those two.)

How would I activate those PIs for use with FOP? I tried
fop.extensions and fop1.extensions w/o success. TIA!